Machine for manufacturing hollow building-blocks.



PATENTED JULY 25, 1905. J. W. SHONE. MACHINE FOR MANUFACTURING HOLLOWBUILDING BLOCKS.

APPLICATION FILED FEB. 27,1904.

ZSHEETS-SHEET 1.

"WWII um I ANDREW a mum m. nmmmlocnuums wasnmcmunc No. 795,370. PATENTEDJULY 25, 1905. I. W. SHONE.

MACHINE FOR MANUFACTURING HOLLOW BUILDING BLOCKS;

APPLICATION FILED rm. 27,1904.

2 slums-SHEET 2.

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view thereof.

PATENT OFFICE.

UNITED STATES JAMES w. SHONE, or ROCHESTER, NEW YORK, ASSIGNOR orONE-HALF TO JOHN N. RAUBER. or ROCHESTER, NEW YORK;

MACHINE FOR MANUFACTURING HOLLOW BUlLDlNG -BLOCKS- v Specification ofLetters Fatent.

Patented July 25, 1905.

Application filed February 2'7, 1904. Serial No. 195,525.

To (all IISZLO'IIY/ it may (concern:

Be it known that I, JAMEs IV. SHONE, of Rochester, in the county ofMonroe and State of New York, have invented certain new and usefulImprovements in Machines for Manufacturing Hollow BuildingBlocks; and Ido hereby declare the following to be a full, clear, and exactdescription of the same, reference being had to the accompanyingdrawings, forming a part of this specification, and to thereference-numerals marked thereon.

My present invention has for its object to provide a machine formanufacturing artificialstone or concrete building-blocks having theirouter faces formed in imitation of out or dressed stone, the parts ofwhich are so arranged that the block may be formed with its facedownward and when completed may be rotated onto one of its side facesand the inclosing sides of the mold-box removed and the block withdrawntherefrom without injury.

To these and other ends the invention consists in certain improvementsand combination of parts, all as will be hereinafter described, and thenovel features pointed out in the claims at the end of thespecification.

In the drawings, Figure 1 is a perspective view of a machine constructedin accordance with my invention. Fig. 2 is a top plan Fig. 3 is a sideelevation thereof. Fig. 4 is a cross-sectional view on line 1 4 of Fig.2. Fig. 5 is a front elevation of the moldingbox removed from thebedframe, and Fig. 6 is a similar view of the mold-box looking in thedirection indicated by the arrow in Fig. 3. Fig. 7 is a cross-sectionalview similar to Fig. 4, showing the block in position about to beremoved from the mold-box; and Fig. 8 is a detail view.

Similar reference-numerals in the several figures indicate similarparts.

In the construction of hollow concrete building-blocks the outer facesof which are formed in imitation of cut or dressed stone it is diflicultto pack the mixture of silicious material into all the crevices when themoldbox is formed in such a manner that the face of the block extendsvertically during the molding operation, and to overcome thisdifficultyIhave employed a particular construction of mold-box, which ismounted upon a revoluble or tilting frame in such a manner that when theblock is formed the outer face thereof is upon the lower side and whencompleted may be rotated onto one of its side faces and removed from themold-box.

In the present embodiment of my inven tion I employ an open rectangularframe or support consisting of the end pieces 1 and 2 and the sidepieces 3 and 4, between which. latter extends a shaft 5, supported atits ends in bearings 6. Arranged on this shaft is a mold-box-supportingframe composed of the side pieces 7 and 8, the respective lower ends 17and 18 of which project laterally, forming an open bottom on the frameand are adapted to rest upon the side portion 3 of the main frame orsupport when the parts are in their normal position. The side pieces 7and 8 of the supporting-frame are provided with the faces 70 and 80,arranged at an angle of ninety degrees to the frame-bottom, and areadapted to support a removable side piece of the mold-box, as will bemore fully described. Extending through the upper ends of the sidepieces 7 and 8 is a rod or handle 9, se cured by bolts 10 and operatingas a handle, whereby the revoluble supporting-frame may be rotated onthe shaft 5, the adjustable connections between the parts permitting theside pieces to be readily adjusted relatively to each other on the shaft5, permitting mold-boxes of greater or less length to be employed.

The mold box embodies the bottom or face-plate 11, formed with the innercon cave or otherwise-shaped face, forming a matrix for molding the faceof the block and having at one edge jaws 12, adapted to extend over theshaft 5 and to be secured thereto by cotter-keys or other fasteningdevices 13, and at its outer side the face-plate is provided withlaterally-extending lugs or projections 14 and 15, adapted to engagebeneath the overhanging edges of the laterallyextending ends 17 and 18on the side pieces of the tilting frame and to be normally held rigidlyin engagement therewith by means of a clamping device such as shown.However, as it is desirable to move the mold-box bottom or face-plate 11relatively to the bottom of the supporting-frame to facilitate theremoval of the molded block, as will be described hereinafter, I mountclamping devices on the .arms 17 and 18, which engage the projections 14and 15.

devices are in the form of screws 16, cooperat These clamping mg withsegmental nuts 20, carried on pivoted spring operated fingers 21,arranged upon ears 22, as shown. At the outer edge of the mold-boxbottom or face-plate are provided lugs or cars to which are pivotedsimilar ears 26, formed on the outer side piece 27 of the mold-b0x, andalso having the stops 28 thereon, with which the side piece 27 engagesto limit its outward movement when the parts of the box are opened. Theside piece 27 is provided with a central aperture, through which a core28 of any desired form may he passed, said core having at its outer enda rim or flange 29 and the handle 30, by means of which it may beremoved, and when placed in operative position the core is held securelyby a pivoted locking-bar 31. Ar ranged in opposition to the outer sidepiece 27 is the removable side piece or pallet 32, supported upon thefaces 70 and 80 of the arms 7 and 8. The end boards 33 extend over theends of the pallet and are prevented from outward movement by means ofribs 34, formed on the faces of said arms, their oposite ends being letinto apertures or grooves formed at the ends of the inner surface of themold-box bottom or face-piece 1 1. In order to hold the mold-box inclosed position, locking devices in the form of hooks 35 pivoted on thearms 7 and 8, their outer ends being adapted to engage lugs orprojections 36 on the outer side piece 27, as shown particularly in Fig.3.

In the illustrations it will be noticed that the main frame or supportand the revoluble frame thereon are somewhat larger than is required fora mold-box of the size illustrated, and it will be readily understoodthat by separating the side pieces 7 and'S of the movable frame amold-box of greater length may be attached thereto and that the heightand width of the box may be correspondingly increased. The only changeswhich it is necessary to make is to increase the length of the hooks 35by sliding the ends 37 thereof outwardly, securing them in position bymeans of bolts 38, and if the thickness of the block is to be increasedand a mold-box of greater depth is employed the adjustable bearings 39,to which said hooks are pivoted, may be moved outwardly on theirrespective arms 7 and 8.

The operation of the machine will now be readily understood. The1nold-box-supporting frame is rotated into the position shown in Fig. 4and the face-plate 11 of the mold is secured rigidly thereto by theclamps cooperating therewith, and as the bolts 16, extending through thesplit nuts 20, are provided with a trapezoidal thread, they maybe pushedinwardly through the nuts, only requiring asingle turn, orpartialrotation, to securely lock the parts together. The pallet 32 isthen placed in position on the faces 70 and 80 and the endboards 33inserted between said arms and. the side piece 27, the parts of themold-box being then secured by the hooks 35. The mold-box beingsupported in this position, is held face downward, and the operator maythen conveniently lay the face of the block by tamping the mixture ofthe finer sand and cement into all the depressions and crevices in. theface of the mold. This facing is then backed up by the usual coarsermixture of gravel and cement and the core 28 inserted and held inposition by the strap or latch 31, permitting the remainder of the moldto be filled and the block completed. To remove the finished block fromthe moldbox, the operator rotates the frame into the position shown inFig. 2, when after removing the core 28 and the hooks or locking devices35 the side piece 27 of the mold-box may be rotated outwardly-intoengagement with the steps 28. By compressing the levers 21 the sectionof nuts 20 are disengaged from the bolts 16, allowing the latter to moveoutwardly and the face-plate 11 to rotate slightly on the shaft 5relatively to the pallet 32 to free itself from the face of the block,as shown particularly in Fig. 7, permitting the block to be removed fromthe machine, when the parts may be again closed in readiness for asubsequent operation.

A molding-machine such as I have described possesses obvious advantages,the principal one of which is that the block during the moldingoperation is supported entirely upon its face, and as the tampingoperations are all in a downward direction. it is possible to produceblocks having faces containing the fine lines or tool-marks and thesharp projections in imitation of dressed stone. The core beingintroduced from the side and the block rotated a quarter of arevolution, it may be allowed to set and harden in its natural positionwith the core-aperture extending vertically. Further, as both the upperand lower surfaces of the block are formed against the side pieces ofthe mold-box they will be parallel and smooth, so that when employed forbuilding purposes the blocks fit accurately upon each other.

I claim as my invention- 1. A mold for artificial-stone blocks embodyingthe connected bottom, sides and ends and adapted. to be tilted on itsside to discharge the block, said bottom forming a matrix for the faceof the block and movable away from the face of the block when the latteris supported on its side to disengage it therefrom.

2. The combination. with a mold-box embodying a bottom, end boards andsides, of a pivoted frame supporting the bottom and one of the sides andadapted to be rotated to upset the mold and means for adjusting thebottom on the frame to move it away from the supported side portion ofthe mold.

3. The combination with a mold-box embodying a bottom, end boards andsides, of a pivoted frame supporting the bottom and one of the sides andadapted to be rotated to upset the mold, pivotal connections betweenthebottom portion of the mold and the sup porting-frame and means formoving said bottom outwardly relatively to the frame.

4. The combination with a mold-box embodying a bottom, ends and sides,of a revoluble frame supporting the box and connections between theframe and said bottom for moving the latter outwardly when said box hasbeen rotated onto one of its sides.

The combination with a mold-box embodying a bottom, ends and sides, of arevoluble frame having faces adapted to support the bottom and one ofthe sides of the mold, pivotal supports for the bottom arranged at oneedge thereof and a device for securing the bottom to the frame.

6. The combination with a support, a shaft thereon and a revoluble framemounted on the shaft, of a mold-box bottom journaled on the shaft andmovable independently thereon, devices for detachably connecting saidbottom to the frame, and side and end pieces supported on the frame andcooperating with the bottom.

7. The combination with a support, a shaft thereon, and a mold-boxembodying a bottom, sides and ends, of a frame composed of side portionsrelatively movable on the shaft and adapted to support the bottom andone of the sides of the mold, pivotal connections between the shaft andsaid bottom and clamping devices for securing the ends of the bottom tothe side portions of the frame.

8. The combination with a support, a shaft thereon and a frame arrangedon the latter and a mold-box side piece supported on the frame, of amold-box bottom pivoted to the shaft, means for adjusting it on itspivot relatively to the frame, a second side piece hinged to bottom,means for holding it in operative position and end boards cooperatingwith the two side pieces.

9. The combination with a support, a shaft thereon and a frame arrangedon the latter having faces extending at right angles to each other, amold-box side piece supported on one of the faces and a mold-box bottomcarried on the other face, of a second side piece arranged in oppositionto the first, end boards cooperating with said sides and means forsupporting the parts in their normal position.

10. The combination with a support, a shaft thereon and a frame arrangedon the latter having faces extending at right angles to each other, amold-box side piece supported on one of the faces and a mold-box bottomjournaled on the shaft and connections between it and the other face, ofa second side carried on the bottom and adapted to open outwardlythereon, end boards 00- operating with said sides and means for holdingthe parts of the mold-box in operative position on the frame.

11. The combination with a support, a shaft thereon and a frame arrangedon the latter having faces extending at right angles to each other, amold-box side piece supported on one of the faces and a mold-box bottomjournaled on the shaft and adjustable connections between it and theframe whereby said bottom may be moved relatively to the other face, ofa second side carried on the bottom and having a limited outwardmovement thereon, end boards cooperating with said side pieces anddevices on the frame for temporarily holding the parts of the mold-boxin operative position.

12. The combination with a support, a frame journaled thereon comprisingrelatively adjustable side portionshaving faces arranged at right anglesto each other, of a mold-box side piece supported on one of saidv faces,a mold-box bottom arranged between the side portions of the frame andadjustable devices for moving it relatively to the other face, a secondside piece arranged in opposition to the first and end boardscooperating with said side pieces.

13. The combination with a support, a frame journaled thereon and amold-box side supported on the frame, of a mold-box bottom, means forsupporting it at right angles to said side piece, a second side piecearranged in opposition to the first, means 011 the frame for holding itin operative position and end boards cooperating with the two sidepieces.

14. The combination with a support, a frame ournaled thereon and amold-box side supported on the frame, of a mold-boxbottom, means forsupporting it at right angles to said side piece, a second side piecearranged in opposition to the first, and pivoted at the outer edge ofthe bottom, stops on the latter for limiting its outward movement,locking devices on the frame for holding said side piece temporarily inoperative position and end boards cooperating with said side pieces.

15. The combination with a support, frame journaled thereon having ribs,a mold box side piece supported on said frame, and a mold-box bottom, ofmeans for securing the bottom in an angular position relative to sidepiece, a'second side piece arranged in opposition to the first havingrecesses in its face, end boards engaging said recesses and the ribs onthe frame and locking devices for holding the parts of the mold-box inoperative position.

16. The combination with a support, a frame journaled thereon, amold-box side piece supported on said'frame and a moldbox bottom, ofmeans for adjustably securing the bottom in an angular position relativeto said side piece, a second side piece embodying the bottom, sides andends, the

supported on the bottom, devices on. the frame for locking it inoperative position and end pieces cooperating with the side pieces.

17. The combination with a support, a frame journaled thereon, a moldbox side piece supported on said frame and a'mold box bottom, of meansfor adjust-ably securing the bottom in an angular position relative tosaid side piece, a second side piece supported on the bottom, andprovided with an aperture, and a removable core extendingtherethrougl'i, devices for locking said side portion in operativeposition on the frame and end boards cooperating with the side pieces.

18. The combination with a support, a frame journaled thereon embodyingthe open bottom and a vcrticallv-extending side, a mold-box side piecesupported on the side of the frame, and a mold-box bottom. arranged inthe open bottom of the frame, and provided with projections adapted toengage therewith, of a clamping device adapted to secure the bottom tothe frame, a second mold-box side journaled on. the bottom and stops forlimiting its outward movement, end boards cooperating with the sidepieces and locking devices for holding the parts of the mold-box inoperative position.

19. In a machine for molding blocks the combination with a revolubleframe having two mold-supporting surfaces arranged at an angle, of amold mounted 011 the frame and said bottom forming a matrix for the faceof the block and supported upon one of the surfaces of the frame when inposition to mold the block, and one of said sides being removable andsupported upon the other extension of the frame when tilted to theposition for discharging the block.

20. In a machine for forming building blocks, the combination with amold-box comprising a bottom provided with a matrix for forming the faceof the block, side pieces, one of which is removable, and en d pieces,of a revoluble frame supporting the bottom and extending over theremovable side of the mold-box, said frame being adapted to rotate thelatter to turn the block and support it in position of rest on theremovable side piece with its face extending in a vertical plane.

21. In a machine for forming buildingblocks, the combination with amoldbox comprising a bottom provided with a matrix for forming the faceof the block, side pieces, one of which is provided with an aperture, ofa core adapted to be inserted in a horizontal plane through the aperturein the side of the box and a revoluble frame for supporting the moldboxand rotating it to turn the face of the molded block and the core intoavertical position.

JAMES W. SHONE. IVitnesses:

G. WILLARD RICH, RUssELL B. GRIFFITH.

